Protector for transmitting mechanism.



0. L JUDELSHONL PROTECTOR FOR TRANSMITTING MECHANISM.

APPLICATION FILED JULY 9.19I8- 1 a simple and cheap protector for-suchmechandwill be there retained.

s: z to it rotecting position.

3 a character as to produce an audible signal or sound when vibrated orshaken, with .means to'automatically restore the protector tector as topre'v'ent its vibration or shaking STATES PA T l OSCAR I. JUDELSHON OFBROOKLYN, -NEWYORK.

To all whom it may concern: p

Beitknowmthat I, OSCARTI. J f'ELsHoN, a citizen of'theUnitedStates, andresident of New York city, borough of Brooklyn, in the county of Kingsand State of New York, have invented certain newand usefullmprovementsin Protectors for Transmitting Mechanism, of which thefollowing is a specification.

- Protecting devices for mechanisms are frej quently installed infactories to rotect the operatives from suchmechanisms, and this isarticularly applicable to the so-called transmitting-mechanisms used inconjunction with poweroperatedwsewing machines, especially wheresanumber of such sewing machines and transmitting mechanisms are arrangedsideby side upon a long table.

shaking of the protector and consequent When it is desired to adjustthe'trans'mitting mechanism, such as by removing or applying 1 the belt,etc.-,-the operator removes the protector and sometimes does notreadjustthe' (protector to its proper position, thereby leaving themechanism unprotected.

-"'The object of my invention is to provide anism,i adapted to beretained inaposition to protect the mechanism and 7 so arranged that theprotector-willautomatically return to its protecting position overthemechanism A further object of the invention is to provide means wherebyif the protector should remain away from the mechanism and the machineshould be/opera'ted, such mechanism will coiSperate-with the protectorin such a manner asto cause the-protector to be vibrated orshakenythereby gto produce an audible signal to apprisetheoperator thathe should-restoregthe protector to its protecting position ovjerthe"mechanism and atthe same time so retainthe proso as not to produce anaudible sound. Means are also-carried by the protector andcooperative-with said mechanism, such "as withone of said belts, tocause yibrationor PROTECTOR FOB TRANSMITTINGMEGHANISM.

Specification of Letters-Patent. Patnted N V.v 26, Appl cation filed iuals s.sr ainaz aosa i production of anaudible signal when' the belt isoperated and the protector is in j the non-protecting position, wherebywhen" the protector s "in the protecting position said means will notcooperate Withfsaid belt, and

no, signal will be produced. My invention comprises novel details ofimprovement and combinations of parts that willbe more fully hereinafterset forth and then ointed out in the claims.

Re erence is to behad to the accompanywith, which protector is in thenon-protectposition exposingthe mechanism {Fig.2 is" a sectional viewsubstantially similar to Fig.1, showingthe protector in the protectingposition; Fig.3 is a cross section sub;-

stantiallyoh the line 3,3, in 'Fig. 1; and

Fig. is a detail perspective'vie w of my improved protector. 1 p

Similar numerals of reference indicate correspondingparts in the severalviews; .My improved protector may be applied in conjunction with anysuitable transmitting or power mechanism 1 for protecting the same. 1 Inthe example illustrated the transmitting mechanism comprises a hangerorbracket 2, having a shaft?) loosely carrying a pulley 4 over whichpasses a transmitting belt 5 adaptedto operate a sewing machine or othermachine which maybe mounted upon table 6 in any well known manner.

Hanger or'bracket 2 hangs from the table.

Secured upon shaft 3 is a stepped or-conepulley*7 adapted to receive apower driven belt 8' from a source of power in a well known manner.Clutch mechanismforjcaus-v ing pulley? to operate pulley/l may beprovided in'any usual manner,-such as by means ofalever- 8 pivoted at 10and provided with; an operating arm- 11, whereby-the dependingarm ,12maybe actuated to cause the conepulleytobe pushed toward and from thetransmitting pulley. The foregoing partsare rnerely illustrative of atran'smitt in'gv mechanism adapted for :use a with 1 my 7 inven tion.

I *My -'impr0ved protector is indicated gen-"- erally at 14,"andfispreferably made of-sheet metal pivotall r supported by a suitable; hinge15- secured to table 6,. so that th -pro: tector may hang below 'thetable'in pos-iti'on' toexpose the transmitting -mechanism for attention,as illustrated in Fig. 1, and to beswung into protecting position withrespect to said mechanism, as illustrated in Fig. 2. In the formillustrated the protector is in channel-like form, open on one side, toembrace and protect the part of the transmitting mechanism opposing anoperator. the form shown the protector comprises a front wall 16 andside walls 17, 18, projecting therefrom in spaced relation. Wall 16 isshown in annular form extending from a substantially mid-portion 19 sothat the upper part of said wall will extend in front of the pulleys andthe lower part will incline under the pulleys, in protecting positionshown in Fig. 2, and the side walls 17, 18 will extend on opposite sidesof the pulleys. The protector may be made from a suitable sheet metalblank cut to the desired shape. For such purpose the mid-portions of themetal of the side walls may be slit and overlapped and fastened togetherby rivets or the like 20, whereby the members of the protector arebraced together. The mid-portion of the wall 18 is preferably cut awayor concave at 18 to afford freedom for the operator to adjust the beltswhen the protector is hanging fromthe table, as in Fig. l. The protectoris shown provided with a downwardly extending projection 21, which maybe an integral portion of the metal of wall 16, adapted to bear gainst astop, such as the usual foot board 22, located beneath the table,whereby the protector will remain properly spaced from the mechanism. Asuitable catch device 23 is shown attached to the foot board by a screwor the like 24., being adapted to be placed in front ot the projection21 to retain the protector in its protecting position over the mechanism2), and whereby when said catch is released the protector may swing backfrom the mechanism. I provide means to automatically restore theprotector to its protecting position over the mechanism and to firmlyretain the protector in such position so that it will not then vibrate,for which purpose a suitable spring a is shown attached at one end tothe protector as to a hole 5 in the wall 18, the opposite end of saidspring being attached to an abutment, such as the table 6, which may bedone by means of a screw-eye 0 attached to the table. The tension ofsuch spring is such that when the protector is released from theposition shown in Fig. 1, the spring will draw the protector toward themechanism and press its projection 21v against the stop or foot board22, thereby to retain the protector over the mechanism and resilientlypress the protector between said stop and the hinge 15, to preventvibration of the protector, hence preventing an audible signal thatwould be produced by thevibration of the protector. In case the springshould break neeares or for some other reason the protector should hangfrom the table, as in Fig. l, I provide means cooperative with themechanism. to cause vibration or shaking of the protector for theproduction of an audible signal from the noise resulting from theshaking oi the protector in case the mechanism. operates,-which meanswill be out of cooperation with said belt when the'protector is adjustedto the-mechanism. For such purpose I have shown a projection 25 in theform of a wire loop attached to Wall 16 of the protector and receivingthe belt 5. The loop-like projection 25 may be secured to wall 16 of theprotector as by riveting the ends 26 ot the wire of said projectionagainst wall 16, against an interposed plate 27, or the projection 25may be attached to the protector in anyothersuitable manner. The lengthof the projection is such that its end portion will engage the belt whenthe protector is hanging freely from the table, asindicated in Figs. 1and 3. At such time the traveling oi the belt through and in contactwith the projection 25 will cause movement of the latter, and therebythe protector will be vibrated or shaken, and since the protector ismade of sheet metal, such vibration or shaking of the protector willproduce an audible signal, indicating to the operator that the protectoris hanging from its hinge and is not in protecting position over thetransmitting mechanism. When the protector is in the last named position(Fig. 2) the belt will run freely through the projection 25 withoutcausing vibration or shaking of the protector and thereby withoutproducing an audible signal.

My invention is simple and cheap to manufacture, yet is efi ective inuse, since the protector may be made in any desired shape to protect themechanism intended, and merely requires the projection 25 to be operatedwith a moving part of the transmitting mechanism to cause the productionof a desired audible signal.

Having now described my invention. what I claim is:

1. The combination of a transmitting mechanism, with a protector movablysupported in position to protect the mechanism, and means toautomatically restore the pro-' tector to such moved therefro 2. Thecombination of a. transmitting mechanism, with a protector movably-supeported in position to protect the mechanism, and a spring cooperativewith said protector to automatically restore the same to its protectingposition over the mechanism and restrain the protector from vibration.

3. The combination of a transmitting mechanism, with a protector movablysup ported in position to protect the mechanism, means to automaticallyrestore the protector position after having been to such position afterhaving been moved therefrom, and a stop cooperative with the protectorto limit its position respecting the mechanism.

4:. The combination of a table, transmitting mechanism hung from thetable, a protector for the mechanism hung from the table to swingrelatively to the mechanism, and a spring cooperative with saidprotector to automatically restore and retain the protector in operatingposition in front of the mechanism.

5. The combination of a transmitting mechanism having a belt, with aprotector movably supported in position to. protect said mechanism, saidprotector having a member adapted to cooperate with said belt forvibrating the protector only when the latter is not in the protectingposition with relation to said mechanism.

6. The combination of a transmitting mechanism having a belt, with aprotector movably supported in position to protect said mechanism, saidprotector having a loop-like projection receiving said belt therein,said projection being in position to cooperate with said belt forvibrating the protector only when the latter is in nonprotectingposition with respect to said mechanism.

7. A protector for transmitting mechanism adapted when vibrated toproduce a signal, and means cooperative between said protector and aportion of such mechanism to cause vibration of the protector when saidmeans is actuated by said mechanism.

8. A protector for transmitting mechanism comprising sheet metal havingspaced walls to protect said mechanism, said protector having a membercooperative with a portion of said mechanism when the protector is notin the protecting position to cause vibration of said protector toproduce an audible signal. a

9. A protector for transmitting mechanism comprising sheet metal inchannel-like form open on one side to receive such mechanism therein,and a member carried by said protector and adapted to cooperate with amoving part of the mechanism when the protector is not in the protectingposition for vibrating the protector.

10. A protector for transmitting mechanism comprising sheet metal havinga wall to oppose the mechanism and spaced walls projecting from thefirst named wall, the latter wall being in angular form, portions of oneof said side walls being secured together, and means to movably supportsaid protector adjacent to the transmitting mechanism, said protectorhaving a member cooperative with a portion of the transmitting mechanismfor vibrating the protector when the latter is not in the protectingposition respecting said mechanism.

11. A protector for transmitting mechanism comprising sheet metal havingspaced walls adapted to receive a portion of the mechanism therebetween,means to movably support the protector adjacent to the mechanism, and aloop secured upon said protector adapted to receive the belt of saidmechanism for vibrating the protector when the latter is not in theprotecting position with relation to said mechanism.

Signed at New York city, in the county of New York and State of New Yorkthis 8th day of July A. D. 1918.

OSCAR I. JUDELSHON.

copies or this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

